Looking at getting a +4 advancer for my G1 and was wondering if you need the carbs rejetted? The bike has -1 front and stock rear sprocket, jardine can and k&n air filter.. If i do need the carbs jetted what should size jets or kit if the best or easyist as well to do..
How is moving up the timing a cause a rejet?? You are not moving more air in or out of the motor so your AF will still be the same.... All you are doing with it is creating a longer burn in the combustion chamber. ie. a more efficient burn
At least two other companies besides Dynojet sell jet kits- Ivans and Factory Pro. I'm not sure which is best- it would probably take comparing race track or drag race times, and depends on your exhaust and intake changes.